10 May 2021: RICHARDS HEAVYLIFT HELO INC UH-1H — KASH HELICOPTER SERVICES LLC — Norris City, IL

Probable cause

The pilot’s improper positioning of the helicopter on the landing pad, and his failure to monitor and control the helicopter as fuel and chemical product were loaded, which led to the helicopter tipping and sliding off the landing pad, and subsequently impacting the ground.

— NTSB Determination